Carburation for internal-combustion engines



Aug. 5 1924.

J. J. FORTIER ET AL 4 GARBURATION FOR INTERNAL COMBUSTION ENGINES Filed July 19,- 1920 J mes 1/6/1729! m/o 66/" 00d Patented Aug. 5, 1924.

iseaii are TENT

JAMES J. IQORTIER-AND Joan w. SHERWOOD, or GRAND RAPIDS, iaIcHIGAN; SAID FORIIER ASSIGNOR or ONESIXTEENTH TO JAMES R. manna-on GRAND RAPIDS,

,MICHIGAN.

CARBURATION FOR INTERNAL-COMBUSTION ENGINES.

Application filed July 19, 1920. Serial No. 397,307.

To all whom it may 00mm.-

- Be it known that we, JAMES J. FoR'rInR and JOHN W. SHERWOOD, citizens of the United States of America, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and' useful Improvements in Carburation for Internal-Combustion Engines; and We do hereby declare the following to be a full, clear, and 'exact description of the invention, such as will enable others-skilled in the art to' Which it appertains to make and use the same.

This invention relates to carburation for internal combustion engines, being particularly concerned with means. for breaking up and scattering the explosive mixture of air and fuel which passes to the en 'ne cylinders through the intake manifo (1 sothat any of the larger particles of unvaporized fuel which may be carried in the air may be divided and practically atomized thereby greatly aiding in the complete vaporization of the fuel. pose of the present invention to provide means by which said ends may be attained in a particularly simple yet effective manner. A further object of the invention is to provide a means of this character which is 7 power driven, and in practice is driven by the force of the passage of the, exhaust gases through the exhaust manifold. A still further object of the invention is to'provide a fuel disseminatingmeans of the character described and so mount it in conjunction with the exhaust manifold that the divided and disseminated fuel is' brough-t'into inti- 'mate contact with a side of the exhaust manifold, which being heated to a high degree of temperature by the hot exhaust gases,

, givesofi heat to the air and fuel-and aids in the complete vaporization of the fuel. And

a yet further object of'the invention is to construct a device capable of attaining the above stated ends, as well as man not specifically enumerated at this time, said device being very simple in construction and easily installed and readily removed for repair or replacement whenever-"desired.

, For an understanding of the invention and the constructions embodying the same, reference may be had to the following description, taken in connection with the accompanying drawing, in which,

' vides the intake It is a primary object and pur-' others Fig. 1 is a side elevation with parts broken away, of an internal combustion engine equipped with our invention.

ig. 2 is a vertical section taken transversely through the combination intake and exhaust manifold with which our invention is used, the section being taken substantially midway between the ends of said manifold, and

Fig. 3 is a fragmentary longitudinal section taken through the exhaust side of the manifold. i i

Like reference characters refer to like parts in the different figures of the drawing.

The engine 1 may be of any preferred and well known ty I to which the combined exhaust and intali: manifold is attached. This manifold has a front side 2, a top 3, back 4 and a centrally located vertical partition 5 which divides the same into two compartments 6 and 7, the former of which propassage to the engine cylinders and the latter of which the exhaust passage from the cylinders. The manifold is completed by a bottom 8, intake extensions 9 one at each end of the intake compartment 6, exhaust extensions 10 connecting with the exhaust compartment and an outlet neck 11 at one end of the exhaust compartment to which the exhaust pipe 12, leading to the rear, is connected. The extensions 9 are connected to the engine so as to supply explosive charges of mixed fuel and air to the engine cylinders, and the extensions 10 are connected to three of the cylinders so as to: ca away t-he exhaustgases, one of the cylin ers delivering gits exhaust gases directly into the neck 11. The front side 2 at one end of the manifold covers the front of the extension of the exhaust compartment, the same extending beyond the intake portion of the manifold as shown. The manifold has a depending neck 13 with which connection is made with the carburetor of the engine to carry the carbureted fuel into the intake compartment 6 of the manifold An opening is made in the verticalpartition 5 over which a plate 14 is placed and secured in place by screws or other suitable connecting means, said plate being integrally provided with a relatively long hub 15' in which a shaft-r 16 is rotatably mounted. At opposite ends of the shaft fans. 17 and This fan is driven by .and turning rapidly in tachably secured in place by screws as shown.

In the conduit leading from the-carburetor to the manifold a short section 20 is located, it carrying a horizontally positioned fan 21 secured to a vertical shaft 22 which is suitably mounted for rotation in the section. the passagev of the mixed air and fuel from the carburetor to the intake manifold and has some effect in dividing any heavy particles of unvaporized fuel into smaller particles.

It is apparent that the exhaust gases forced through the compartment 7 fromthe two cylinders at the front of the engine serve to drive the fan 17 which maybe variously designed if necessary to get the maximum effect of the passage of the gases and trans-. mit the force thereof into rotary movement. The fan 18 is accordingly positively driven the compartment at the upper end of the connection to the carburetor serves to agitate the'mixture of fuel and air and force it against the walls of the intake compartment, the same being heated to a high degree of temperature by the hot exhaust gases. The blades of the fan 18v may be set at any desired angle or curved if desired to more positively direct the mixture against the hot vertical partition 5. has a dual function, not only agitating the mixture and directing it against the heated walls of the manifold, but also breaking up the heavier unvapori'zed particles of fuel so that the same are more readily vaporized when they come in contact with the heated parts of the manifold.

The fan unit is simple in construction, may

be cheaply made, and is very easily installed or removed for repair,

lubrication, or replacement. It is evident that many methods of driving the fan in the intake compartment of the manifold may be used, and the in-" vention should not be considered as limited shown.

used with internal combustion engines, our.

invention becomes more valuable, it breaking u the particles not readily vaporizing and directing them against hot metal parts which 17 through the open-' The vfan gine, the exhaust With the mower claims and we consider that we are entitled to all forms of structure that come within the scope of said claims.

We claim:

' 1. In combination with a manifold for.

internal combustion engines having two horizontal compartments located side by. side and separated by a partition, said manifold being adapted to be applied to an internal combustion engine, the exhaust gases from the engine traversing one compartment and the intake mixed fuel and air the other compartment, the front side of the front compartment having an opening therethrough and the partition also having an opening therethrough, a plate attached to the partition and formed with a horizontal journal bearing, a shaft rotatably mounted in andpassing through said bearing, a fan secured at each end ofthe. shaft, and a plate attached to and covering the opening in said front side of the front compartment.

2. In combination with a manifold. for internal combustion engines having an 'exhaust and an intake com artment located side by side and separated by a partition, said manifold being'adapted to be applied to an internal combustion engine'so that the exhaust gases therefrom may traverse the exmounted on and extending through-said partition, and a fan secured at each end of the shaft, one fan being in the exhaust'and the other,in the intake compartment" substantially as and for the purposes described.

3. In combination with a manifold for internal. combustion engines having two compartments located side by side and separated by a partition, said manifold being adapted to be applied to an internal combustion enases traversing one comartment and the intake mixed air and fuel the other, of a fan'mounted for rotation in the intake compartment, a shaft onwhich the fan is .fixed extending through the partition into the exhaust compartment, and means mountedon the shaft within said exhaust compartment adapted to be actuated by the exhaust gases 1n passing to, thereby substan- JAMES J. FORTIER; JOHN W. SHERWOOD. 

